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Question
question 4 a race car is moving counterclockwise on a circular path as shown in the diagram. imagine that at this instant, the car is at point p and moving at a speed of 100 mph. if the car hits a large oil slick that reduces the force of friction to zero, in what direction will the car slide?
Step1: Recall Newton's first law
An object in motion will continue in a straight - line motion with a constant velocity unless acted upon by an external force.
Step2: Analyze circular motion
In circular motion, friction provides the centripetal force that keeps the car moving in a circle. When friction becomes zero, there is no centripetal force.
Step3: Determine the direction
The car will move in a direction tangent to the circular path at point P. Since the car is moving counter - clockwise, the direction of the tangent at point P is to the right.
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